Search found 32 matches

by Craig Kendrick Sellen
Tue Apr 28, 2009 9:13 am
Forum: General Discussion
Topic: NEED COIL MADE BY STANWICK LHO-2
Replies: 2
Views: 565

NEED COIL MADE BY STANWICK LHO-2

DOES ANYONE HAS A FEW STANWICK LHO-2 COILS LAYING AROUND? OR A PHOTO OF ONE?
by Craig Kendrick Sellen
Sat Oct 25, 2008 10:04 pm
Forum: General Discussion
Topic: need TV schematic (RCA)
Replies: 3
Views: 865

need TV schematic (RCA)

I need a schematic for a RCA B&W TV.
Model# AR181W
Model year 1973
serial# 211634062
[email protected]
:cool:
by Craig Kendrick Sellen
Sat Oct 25, 2008 9:59 pm
Forum: Up For Grabs
Topic: looking for article in old PE magizne
Replies: 1
Views: 2040

looking for article in old PE magizne

I am looking for the old Popular Electronics for a article i want. Can be phoyocopys.
Popular Electronics June 1962 i think it starts on page 53 Build a SSB side bander SSB exciter.
[email protected]
:cool:
by Craig Kendrick Sellen
Tue Apr 22, 2008 3:53 pm
Forum: Computer Programming
Topic: looking for 3 digit frequency counter using PICAXE
Replies: 8
Views: 4929

displays

TO ALL
I can tell you this.
There are common cathodes and common anodes on the displays. Thats why there PNP's or NPN's. :grin:

To the one on the web, whats the PIC# and what software does it use? :razz:
by Craig Kendrick Sellen
Wed Apr 09, 2008 9:13 am
Forum: Computer Programming
Topic: looking for 3 digit frequency counter using PICAXE
Replies: 8
Views: 4929

looking for 3 digit frequency counter using PICAXE

http://www.postimage.org/aV1e8519.jpg See attachment circuit. Is there any way this circuit can be modified to a 3 digit frequency counter? I realized the software will have to be changed. But if someone out there can do this it will be much appreaced. I also realized that the D1, Q3, RLY1 can be o...
by Craig Kendrick Sellen
Mon Oct 01, 2007 7:31 am
Forum: General Discussion
Topic: NEED BAD POPULAR ELECTRONICS JUNE 1962 (BUILD THE SSB-SIDEBA
Replies: 0
Views: 946

NEED BAD POPULAR ELECTRONICS JUNE 1962 (BUILD THE SSB-SIDEBA

NEED BAD POPULAR ELECTRONICS JUNE 1962 I THINK PAGE START 53 TO END, (BUILD THE SSB SIDEBANDER) :sad:
by Craig Kendrick Sellen
Mon Sep 24, 2007 7:55 am
Forum: General Discussion
Topic: PARALLELING FIXED REGULATORS (SAFELY)
Replies: 8
Views: 1946

PARALLELING FIXED REGULATORS (SAFELY)

I NEED TO HAVE 6VDC AT 10 AMPS. I WAS THING OF MAYBE SEVERAL SMALLER IC REGULATORS IN PARALLELING THEM? OR IS THERE A 10 AMP. REG. OUT THERE? :???:
by Craig Kendrick Sellen
Mon Sep 24, 2007 7:08 am
Forum: General Discussion
Topic: looking for audio chip or a substitute
Replies: 14
Views: 10194

can't find chip?

You can get twice the power out of a chip by bridging it! But one will have to be 180* out of phase. But you will be using twice the chips for each channel. :smile:
by Craig Kendrick Sellen
Mon Sep 24, 2007 6:36 am
Forum: General Discussion
Topic: Popular Electronics Magazine
Replies: 19
Views: 6627

NEED POPULAR ELECTRONICS JUNE 1962 PAGE 53, ON

HELP, HELP, HELP, NEED POPULAR ELECTRONICS JUNE 1962 STARTS ON PAGE 53, TILL END. (BUILD THE SSB SIDE-BANDER). NEED PHOTOCOPYS OR POST IT. :sad:
by Craig Kendrick Sellen
Wed Sep 05, 2007 6:19 am
Forum: General Discussion
Topic: Analog Speech scrambler
Replies: 14
Views: 3789

speach or voice scrambler

First to JOLLYRGR; In your ring modular I whould use SCHOTTKY BARRIER DIODES. SUCH AS 1N5819 or eqv. I have a sugustion; how about using a A/D converter. If someone out there knows how to use one. Also I herd of a CODEX chip. You will probley have to get a matched chip set. Ask around the chip maker...
by Craig Kendrick Sellen
Sun Sep 02, 2007 1:25 pm
Forum: General Discussion
Topic: need someone that knows how to design bandpass filter circui
Replies: 6
Views: 1843

need someone that knows how to design bandpass filter circui

Need someone to design bandpass filters. Most want to drop in values. (see circuit). Need 16 filters, running from a common buss line. Each filter will have a 625Hz band width. (1) Theoryical 0 to 625Hz (2) 625 to 1250Hz (3) 1250 to 1875Hz (4) 1875 to 2.5kHz (5) 2.5kHz to 3125Hz (6) 3125 to 3750Hz (...
by Craig Kendrick Sellen
Fri Jul 27, 2007 12:03 am
Forum: Up For Grabs
Topic: need specific articles from magazines
Replies: 0
Views: 1413

need specific articles from magazines

OPEN TO ALL; I NEED "SPECIFIC" ARTICLES FROM MAGAZINES. COPYS WILL DO. RADIO and TELEVISION NEWS SEPTEMBER 1950 (A NOISE REDUCTION SYSTEM) TUBE CIRCUIT POPULAR ELECTRONICS DECEMBER 1957 (A THROBING VIRATO) JUST SCHEMATIC POPULAR ELECTRONICS JUNE 1962 starting at page 53 A SINGLESIDEBANDER kendrickse...
by Craig Kendrick Sellen
Mon Jul 02, 2007 6:14 pm
Forum: General Discussion
Topic: NEED A VACUUM TUBE KNOWLAGE PERSION TO CHECK VT CIRCUIT
Replies: 1
Views: 1048

NEED A VACUUM TUBE KNOWLAGE PERSION TO CHECK VT CIRCUIT

I NEED A PERSION THAT HAS KNOWAGE OF VACUUM TUBES OR USE TO WORK WITH THEM. TO CHECK OUT A VT CIRCUIT. HOW THE ELECTRONIC CANARY WORKS & the THEORY of it WHEN TURNED ON, THE BIRD WHISTLES DOWN-SCALE FOR A FEW SECONDS, BREAKS INTO A WARBLE, AND AFTER SEVERAL SECONDS, SHUTS OFF-ONLY TO START AGAIN AUT...
by Craig Kendrick Sellen
Thu Jun 14, 2007 7:10 am
Forum: General Discussion
Topic: NEED FORMULA TO FINS FREQ. OF OSCILLATOR
Replies: 24
Views: 5725

revison of values

To, Mr. AL; I reduced the capacitor to 0.22uF plastic or mylar or cermic (NPO) I guess it will havt to be (back-to-back) also to make a 0.11uF. I revamped the resistance values using a TLO82, chip. The value for 500Hz 7290 ohms. please check this? The value for 540Hz 6600 ohms, please check this? Bo...
by Craig Kendrick Sellen
Mon Jun 11, 2007 11:00 am
Forum: General Discussion
Topic: NEED FORMULA TO FINS FREQ. OF OSCILLATOR
Replies: 24
Views: 5725

my problem

open to all;;; Thanks for the education! but I still need the value for the potentiometer? I suspect the value for C can be reduced by a factor of ten. from 22uF to 2.2uF. I still need the value of the POT. between 500Hz to 540Hz. This oscillator is to be used in a inductance core tester in case any...